Spacing-washer



H. VOSSLER.

SPACING WASHER.

APPLICATION men JULY 18. 1917.

' Patented July 29, 1919.

IN VENTOR.

MJY m/ WM T u T m A onnicn.

HENRY VOSSLER, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE HART & HEGEMAN-MANUFACTURING COMPANY, CONNECTICUT.

0F HARTFORD, CONNECTICUT, A CORPORATION OF SPACING-WASHER.

Patented July 29, 1919.

Application filed July 18, 1917. Serial No. 181,216.

To all whom it may concern:

Be it known that I, HENRY VossLER, a subject of the Emperor of Germany,and a resident of Hartford, Connecticut, have invented certain new anduseful Improvements in Spacing-\Vashers, of which the following is aspecification.

.The object of this invention is to provide an adjustable spacing washerfor the purpose of eliminating end-play of a member which is mounted ina supporting part and secured against complete displacement by fixedcollars.

The invention is illustrated in its use in an electrical switch, whereit is of particular advantage in accurately positioning the spindle tocompensate for variations in the switch base, due to shrinkage orwarping in manufacture.

Figure 1 is a sectional view of a simple form of electrical snap switchin connection with which the invention is used.

F ig. 2 is a plan and edge view of the washer made in accordance with myin vention.

Referring to the drawings, a denotes a switch base of porcelain, orother suitable material, 6 the switch spindle, 0, (Z collars on theswitch spindle above and below the base and by means of which thespindle is secured in position, 5 the adjustable spacing washer locatedbetween one of said collars as d and the base a to take up any endplayof the spindle in the base.

The washer 5 comprises an inner part 6 and an outer part 7 which isapertured to receive the spindle. The outer part 7 is set down out ofthe plane of the inner part 6 and any desired thickness of washer may besecured by forcing the inner part into the outer part.

This washer is conveniently made by shearing the inner part from theouter part by a properly sized punch, the action of which is stoppedbefore the two parts are separated.

In the manufacture of electrical switches the space between the twocollars 0, d, is designed to be just enough to take the thickness of thebase but since the composition from which the base is made, andespecially porcelain, is apt to shrink in manufacture, it is desirableto provide some means to compensate for this shrinkage in order that themovable switch blades shall always be alined with the stationarycontacts. A resilient structure, such as a spring washer isobjectionable for the reason that it would provide so much frictionalresistance that the snap action of the switch might be interfered with.Furthermore, any resilient member would exercise a constant pressure onthe porcelain which might tend to crack it. Heretofore it has beencustomary to machine 01f a part to the proper size to take up theend-wise play of the spindle but this has necessitated careful fittingand an extra machining operation. An adjustable spacing such as hereshown and described can be properly fitted during the assembling of thespindle with the base until one of the collars, as d, which is removablecan be engaged with the spindle.

While this device finds a practical utility in connection with electricswitch constructions I do not desire it to be understood that it islimited to this particular use.

I claim as my invention:

An adjustable spacing washer made in two parts with a face of one out ofthe plane of the corresponding face of the other;

one of said parts being frictionally supported by the other andrelatively movable axially thereof.

HENRY VOSSLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of fatents,

Washington, D. G. r

